Switch eMMC FAQ

Discussion in 'Switch - Console, Accessories and Hardware' started by Selver, Mar 5, 2017.

Mar 5, 2017

Switch eMMC FAQ by Selver at 4:37 PM (2,248 Views / 2 Likes) 22 replies

  1. Selver
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    Member Selver 13,5,1,14,9,14,7,12,5,19,19

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    This thread is intended to provide answers to the most common questions about the Switch's eMMC module and the (built-in storage) and the break-out board it sits on.

    Open Questions:
    Is the NAND encrypted / encrypted uniquely per-console?
    Can you backup the built-in storage?
    Can you restore a backup to the same console, after an update has been applied?
    What are example compatible sockets for the breakout board?

    Answered Questions:
    What chip is used for the built-in storage?
    Is it right to call the built-in storage NAND?
    How would I hard-mod the breakout board?

    I'll keep this post updated with answers and other questions as they arise... Feel free to recommend additional questions/answers in responses below.
     
    Last edited by Selver, Mar 5, 2017
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  2. Selver
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    Member Selver 13,5,1,14,9,14,7,12,5,19,19

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    Reserved.
     
  3. Duo8

    Member Duo8 I don't like video games

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    There is already a pin-out for the board.
    However it would be nice if someone made a simple board that can house the board, making it accessible without soldering.

    Also, once again, there are 2 types of chip. Something to keep in mind as they might have different usable sizes.

    ALSO, these are actually called eMMC modules, so calling them eMMC would be correct.
     
    Last edited by Duo8, Mar 5, 2017
  4. Selver
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    Member Selver 13,5,1,14,9,14,7,12,5,19,19

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    Great to hear there is already a pin-out. Do you have a link to that GbaTemp post or external article?

    True, I could call them eMMC modules. That's a lot more characters than simply NAND. And just saying eMMC without the term "modules" is only as correct as calling it NAND. So, because of the familiarity of the term NAND, for now I will use that. I'll update the post with these details. Please understand I agree with you, and am simply making a (potentially temporary) choice until an informal standard arises.
     
  5. Kyubnyan

    Member Kyubnyan GBAtemp Fan

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    I am also looking for the pin out, I can hard mod my switch that will come with 1.0 firmware on Monday.
     
  6. Duo8

    Member Duo8 I don't like video games

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  7. Kyubnyan

    Member Kyubnyan GBAtemp Fan

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    This is wonderful.
     
  8. Duo8

    Member Duo8 I don't like video games

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    A bit more difficult this time since you'll have to power it yourself.
     
  9. Kyubnyan

    Member Kyubnyan GBAtemp Fan

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    Yeah, but I only need to get one extra part, so I'm ok with it.
     
  10. Selver
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    Member Selver 13,5,1,14,9,14,7,12,5,19,19

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    updated with second type of eMMC NAND module, additional questions, more.
     
  11. Bug_Checker_

    Member Bug_Checker_ GBAtemp Advanced Fan

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    How many eMMC or NAND threads will be opened just for the switch? I'm guessing 6.
    https://gbatemp.net/threads/emmc-memory-ic-is-easily-replacable.463213/page-5#post-7152476
     
  12. sigboe

    Newcomer sigboe Advanced Member

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    Selver likes this.
  13. chartube12

    Member chartube12 GBAtemp Psycho!

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    I am guessing the modular design is to make it easier down the road for Nintendo to produce units with more storage. This way they just have to order new storage chips. No wasting old mobo parts or having to use old ones up. I see 64gb and maybe 128gb switches being a possiblity quickly. I have already seen 128 micro sd cards at walmart and target priced under 50.00. Probably a year off from seeing them at 20.00
     
  14. leerz

    Member leerz GBAtemp Fan

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    did someone already tried swapping the boards? :D
     
  15. lintz

    Newcomer lintz Newbie

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    Any one who have tried booting the switch without the emmc connected?

    And about the naming nand or emmc. This is what Toshiba wrote about their emmc.

    "e ・MMC™ is a family of NAND flash memories with control functionality such as ECC, wear leveling and bad-block management.
    e ・MMC™ also provides a high-speed memory card interface compliant with JEDEC/MMCA Version 5.0/5.1, eliminating the need for users to be concerned about directly controlling NAND flash memories. Thus, e ・MMC™ can easily be used as a storage device for embedded applications. "
     
  16. Duo8

    Member Duo8 I don't like video games

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    There's a DFU mode of sort when you plug it in without the emmc.
     
  17. xile6

    Member xile6 GBAtemp Maniac

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    Sounds like information from nintendo. There is nothing to say right now lol.....


    I do hope that the nand is system lock tho. This system pops together so easily i can see so much being done if something break and you jsut buy the replacement part.
     
  18. Duo8

    Member Duo8 I don't like video games

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    It's per-console encrypted apparently. There'salso anti downgrade (maybe, just that someone tried and it doesn't work, so at least not as straightforward as 3DS).
     
  19. urherenow

    Member urherenow GBAtemp Addict

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    How did someone try it? You mean they couldn't flash the old nand backup back after upgrading? Where's your source?
     
  20. Felek666

    Member Felek666 Slightly outdated | Windows & Linux user

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    Switch security system don't allow to run unsigned firmware or even reflash your current FW to old one. You don't need to prove that, you can just try it. You will just see Switch reverting everything and going back to it's previous state.
     

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